SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 80lbs - ...

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T#:26038568

Part#: SPRKH1000DBMST

In Stock

20% off MSRP $ 1,042.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 833.99 USD

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20% off MSRP

$ 1,042.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 833.99 USD

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Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.

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5mm Single Groove Valve Keeper - Set Of 24

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T#:21604314

Part#: KPR-5.0-7S-24

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$ 72.99 USD

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$ 72.99 USD

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Two required per valve, for use with certain supertech valves 5.0mm single groove

Supertech High Performance Valve Spring Set - E36 M3, 325i, 328i - Ti...

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T#:302460

Part#: SPRK-H1000DBM

Ships in 5 Business Days

$ 787.99 USD

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$ 787.99 USD

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Supertech Spring / Retainer kits are precision matched sets for a complete valvetrain overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Spring / Retainer kits are second to none in terms of performance, quality and value.

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BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper - Set Of 24 ...

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T#:21604313

Part#: KPR-6S-7-24

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$ 51.99 USD

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$ 51.99 USD

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BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper is a precision-engineered component essential for securing valves in BMW engines. Turner Motorsport offers this high-quality valve keeper, designed to fit specific Supertech valves for enhanced performance and reliability.

Precision Fit: Designed specifically for BMW M42, M50, M52, and M54 engines, ensuring a perfect fit with 6.0mm single groove valves.
High-Quality Construction: Made from durable materials to withstand high-pressure conditions and provide long-lasting performance.
Enhanced Valve Security: Two keepers are required per valve to securely hold the valve in place, preventing movement and ensuring consistent engine performance.
Compatibility: Ideal for use with certain Supertech valves, providing a reliable solution for engine builds and upgrades.
Easy Installation: Simple to install with standard tools, offering a hassle-free upgrade or replacement option.

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Supertech BMW S54 Dual VALVE Spring Kit - E46 M3 Z3M Z4M

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T#:7403169

Part#: SPRK-2521-2BM-T1

In Stock

$ 1,050.99

This product was last offered at the strikethrough price on
05-03-2026

$ 919.99 USD

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$ 1,050.99

This product was last offered at the strikethrough price on
05-03-2026

$ 919.99 USD

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Dual valve spring kit to be used with triple groove valves and OEM locks.

Performance Valve Springs Kit - Set of 16 Beehive Style

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T#:18302503

Part#: SPR-MC56BE

In Stock

$ 261.99 USD

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$ 261.99 USD

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Performance Valve Spring Kit

This valve spring kit, designed for performance built engines, is a critical component for those demanding peak performance from their vehicles. The kit includes a set of 16 springs that mount to the stock OEM retainers.

Key Features:

Valve Spring Type: Beehive Spring
Outer Spring Outer Diameter: 23.30mm
Outer Spring Inner Diameter: 16.80mm
Inner Spring Outer Diameter: 18.80mm
Inner Spring Inner Diameter: 12.30mm
Pressure Seat: 65 @ 33.6mm
Pressure Open: 163 @ 10
Maximum Lift: 11.40mm
Coil Bind: 22.20mm
Spring Rate: 9.80mm
Retainer: OEM Retainer + OEM Seat

Upgrade your engine's performance with this high-quality valve spring kit, ensuring optimum power and reliability.

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Supertech Titanium Valve Retainers - Intake - Set Of 12

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T#:21604322

Part#: RET-BMN54-TI-12

Ships in 6 Business Days

$ 197.99 USD

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$ 197.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Supertech Titanium Valve Retainers - Exhaust - Set Of 12

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T#:21604321

Part#: RET-BMN54-TE-12

Ships in 7 Business Days

$ 197.99 USD

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$ 197.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

Performance Dual Valve Spring Kit with Steel Retainers - Set Of 24 ...

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T#:21604308

Part#: SPRKFE20N54BE

Ships in 4 Business Days

$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 75 @ 36.5 Open Pressure: 155 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 8 Kit spring: SPR-FE20BE Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Supertech High Performance Valve Spring Set - E46 M3, MZ3 (S54), MZ4 ...

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T#:11760

Part#: TMS11760

Ships in 8 Business Days

$ 1,038.99 USD

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$ 1,038.99 USD

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For BMW's with S54 engines, these valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for high performance and durability at high rpms, with better memory. These are extremely high quality, offered at the best price.

Computer designed to ensure that the wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme racing conditions. Computer software allows Supertech to make sure that the harmonics are well under control.

The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe

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Conical Spring Kit - Set Of 24

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T#:21604309

Part#: SPRKFE20N54BE2

Ships on Jul 16, 2026

$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 88 @ 36.5 Open Pressure: 160 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 7.25 Kit spring: SPR-FE20BE-2 Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Supertech BMW M50/M52/S50/S52 Dual Valve Spring Kit

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T#:9126166

Part#: PRK-H1000D-BM

Ships on Jul 15, 2026

$ 763.99 USD

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$ 763.99 USD

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Performance Conical Valve Spring - Sold Each

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T#:21472894

Part#: SPR-FE20BE

In Stock

$ 19.99

This product was last offered at the strikethrough price on
05-03-2026

$ 18.99 USD

Limited Qty Sale

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$ 19.99

This product was last offered at the strikethrough price on
05-03-2026

$ 18.99 USD

Limited Qty Sale

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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Single Groove Valve Keeper 6mm - Priced Each

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T#:3268708

Part#: KPR-6S-7

In Stock

$ 5.99

This product was last offered at the strikethrough price on
03-04-2026

$ 2.99 USD

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$ 2.99 USD

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Two required per valve, for use with certain supertech valves 6.0mm single groove

SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 67lbs - ...

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T#:51426477

Part#: SPRKH100DRBMST

In Stock at Vendor

$ 833.99 USD

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$ 833.99 USD

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Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.

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Valve keeper for Audi/BMW/Opel 6mm stem Triple groove - Supertech ...

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T#:26704985

Part#: KPR-VW6-T

Ships in 8 Business Days

$ 1.99 USD

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$ 1.99 USD

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MINI F54 to F60 Performance Valve Springs Kit - Set Of 16

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T#:31158807

Part#: SPRK-MCB48

Ships in 8 Business Days

$ 721.99 USD

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$ 721.99 USD

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MINI F54 to F60 Performance Valve Springs Kit - Set Of 16

The MINI F54 to F60 Performance Valve Springs Kit - Set Of 16 is designed to enhance performance for engines that demand higher specifications. This kit mounts directly to the stock OEM retainers, making it a seamless upgrade for those seeking improved engine performance.

Set of 16 springs: Complete kit for comprehensive engine upgrade.
Improved performance: Designed for high-performance engines.
Direct fit: Mounts to OEM retainers, ensuring easy installation.
Specifications:
- Outer Spring Diameter: 24.40mm
- Inner Spring Diameter: 21.00mm
- Outer Spring ID: 17.60mm
- Inner Spring ID: 14.20mm
- Pressure Seat: 75 @ 37mm
- Pressure Open: 155 @ 10mm
- Maximum Lift: 12.2mm
- Coil Bind: 23.20mm
- Rate: 8.0mm
- OEM Retainer and Seat Compatible
- Retainer Part Numbers: SPR-FE20BE(16) + RET-BMB48/TE(8) + RET-BMB48/TI(8)

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Performance Conical Valve Spring - Set Of 24

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T#:21604325

Part#: SPR-FE20BE-2-24

Ships in 8 Business Days

$ 494.99 USD

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$ 494.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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MINI R50 to R53 Performance Valve Springs Kit - Triple Groove SPRk-TS...

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T#:31291033

Part#: SPR-TS1015-MC

Ships in 8 Business Days

$ 701.99 USD

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$ 701.99 USD

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MINI R50 to R53 Performance Valve Springs Kit - Triple Groove SPRk-TS1015-mc is designed for high-performance engines that require enhanced valve control. This kit mounts directly to the stock OEM retainers and is ideal for performance builds demanding superior spring characteristics.

Key benefits of the MINI R50 to R53 Performance Valve Springs Kit - Triple Groove SPRk-TS1015-mc include:

Dual Valve Spring Design: Provides increased stability and durability under high performance conditions.
High Pressure Ratings: Offers a seat pressure of 76 lbs @ 34.80 mm and an open pressure of 210 lbs @ 11 mm, ensuring reliable valve control.
Extended Lift Capability: Supports a maximum lift of 14.00 mm, allowing for more aggressive camshaft profiles.
Precision Specifications: Includes dimensions of OUTSPR.OD 27.50 mm, OUTSPR.ID 20.00 mm, INNSPR.OD 20.00 mm, and INNSPR.ID 15.20 mm for accurate fitting.
Durable Construction: Coil bind at 20.70 mm and rate of 12.10 mm ensure long-lasting performance and resistance to wear.
Complete Set: Includes 16 springs for a full engine overhaul.

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Performance Conical Valve Spring - Set Of 24

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T#:21604324

Part#: SPR-FE20BE-24

Ships in 8 Business Days

$ 471.99 USD

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$ 471.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM100...

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T#:29002074

Part#: SPRK-HM1007BE/MC

Ships in 8 Business Days

$ 768.99 USD

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$ 768.99 USD

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Upgrade Your Mini's Engine Performance with MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM1007BE/MC2 SPR-HM1007BE/MC2

Enhance your Mini's engine performance with the MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM1007BE/MC2 SPR-HM1007BE/MC2. This comprehensive kit is designed to optimize valve operation and improve engine efficiency. With high-quality materials and precision engineering, it ensures durability and reliability for your Mini's engine.

Benefits:

Optimizes valve operation for improved engine performance
High-quality materials ensure durability and reliability
Precision engineering for enhanced engine efficiency
Compatible with Mini W10 and W11 engines

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Supertech Titanium Valve Retainers - Exhaust - Sold Each

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T#:21604320

Part#: RET-BMN54-TE

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

Supertech Titanium Valve Retainers - Intake - Sold Each

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T#:21604319

Part#: RET-BMN54-TI

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Performance Conical Valve Spring - Sold Each

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T#:21604306

Part#: SPR-FE20BE-2

Ships in 8 Business Days

$ 20.99 USD

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$ 20.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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SuperTech High Performance Valve Spring Kit - 88lbs - BMW N55 S55 ...

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T#:14783500

Part#: SUP-HPVSK-S55-88

Ships on Jul 15, 2026

$ 1,099.99 USD

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$ 1,099.99 USD

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Supertech High Performance Valve And Spring Kit - B58

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T#:641511

Part#: SUP-HPVK-B58

Ships on Jul 15, 2026

$ 2,339.99 USD

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$ 2,339.99 USD

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Upgrade your valvetrain with Supertech components Kit Contains: 12 Nitride Intake Valves 24 Intake Valve Keepers 12 Inconel Exhaust Valves 24 Exhaust Valve Keepers 24 High Performance Valve Springs 24 Titanium Retainers

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5mm Single Groove Valve Keeper - Priced Each

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T#:21604312

Part#: KPR-5.0-7S

Back Ordered

$ 3.99 USD

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$ 3.99 USD

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Two required per valve, necessary use with certain supertech valves 5.0mm single groove

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Supertech Valve Springs

Performance Valve Spring Kit

Key Features:

Upgrade Your Mini's Engine Performance with MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM1007BE/MC2 SPR-HM1007BE/MC2

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